Bontus ostenbeba



July 21, 1925.

P. @STEINBERG PUMP Filed Nov. 29, 1924 Flauw. l

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PONT'US OSTENBERG, 0F SAN JOSE, CALIFORNIA.

PUMP.

Application led November 29, 1924. Serial No. 752,982.

To all whom t may concern:

Be it known that I, PoN'rUs OsrENBiiRma citizen of the United States,and a resident of San Jose in the county of Santa Clara and State ofCalifornia, have invented cer tain new and useful Improvements in Pumps,of which the following is a specification.

This invention relates well centrifugal pump structures. I

In the present state of the art .of deep well pump construction, whenrepair o r .replacement. of any portion of the driving shaft or bearingstherefor between the pump bowls and the top of the well becomesnecessary, it is necessary to pull the entire pump from the well toeifect such repairs or replacements.

It is the object of the resent invention to provide a means where y thepump shaft and its bearings may be separated from the pump proper at asuitable point above the up ermost bowl, and removed from the well an relaced therein without removing the pump owls or impellers or de tachingthem from their supports, or otherwise materially disturbing theirnormal arrangement..

It is another object of the invention to provide a means of thecharacter indicated that may be eifectively and easily operated from thetop of the well, and that will be economical to manufacture, simple inform and construction, of few parts, and highly eiicient in itspractical application.

Figure 1 is a vertical transverse section through a pump embodying myinvention, parts broken away.

Figure 2 is an enlarged view of that portion of the ump structure shownin Figure 1 which ein odies the principal features of the invention,partly in sectionand partly in elevation. I

Figure 3 is an enlarged section on line 3 3 of Figure 1.

Referring more particularly to the drawing, I show at 1 a pump head witha discharge at 3, a pulley at 4, a drive shaft at 5 and a tubularenclosure for the shaft 5 at 6. The tubular enclosure 6 is supported inhead 1 by means of a nut 7 and a discharge casing 2 is suspended fromhead 1 by being threaded into the saine as indicated at 8.

I prefer. to join the shaft sections by threading them into couplings asshown at particularly to deep 9, these couplings rotatin within the tube6 which acts as a bearing t erefor. The several tube sections are joinedby cou linge 10 into which they are threaded an secured againstseparating when the tube is revolved backward y by set screws 11. y

From the lower end of casing 2 is suspended the pump bowl structure 13,including impeller 14 on shaft 5, and a bearing 15 supported in bowl 13by webs 16.

On the u per surface of impeller 14 are formed radially arranged ribs17, and in the lower surface of bearing member 15 are formed radiallyarranged grooves 18 adapted to receive ribs 17.

The upper end of bearing member 15 is threaded to engage the lower endof tube 6 as shown at 19.

The lower e-nd of the tube 6 has a socket member 20 fixedly positionedtherein, this socket in the present case having a hexagonal innersurface as shown at 21 and provided at its lower end with an inwardlyextending flange 22.

The shaft 5 is divided just above bearing 15 but normally joined tooperate as a unit by coupling 23 into which the two parts are threaded,the exterior surface of coupling 28 being hexagonal in form as at 24s,and of such a size that the member 2() will slide thereover and engagethe same.

At 25 I show several webs carried by tube 6 and extending radiallyoutward to slidably engage casing 2 adjacent to and preferably betweenthe coupling 23 and the upper end of bearing member 15.

Assumin the pump structure to be formed an installed as hereinbeforedescribed, if on account of the breaking of the shaft 5 or for any otherreason, it is desired to remove the shaft from the well, the followingste s are taken.

First, t e tube 6 is rotated backwardly until it is unscrewed frombearing member 15 at 19. This may be done without separating the severaltube joints because they are held in couplings 10 by set screws asdescribed.

The tube having been loosed from the bearing it is raised a distanceuntil the member l20 passes over coupling 23 on shaft 5, the ange 22 ofsaid member 2O engaging the lower end of said coupling and therebyVraising the shaft 5 and the parts carried thereby. The shaft of coursecan be raised `cou 11ng`23Y causes the shaft 5 to rotate bac ardly. Butsince the lower end of shaft 5 cannot rotate on account of theengagement between the` impeller` and the bearing member, 1t mustnecessarily unscrew in the coupling 23.

This separation at points 19 and 23 permits withdrawal of the entiretube 6, s aft 5 (above bearing 15) and parts mounted thereon, withoutdisturbing the discharge casing or any of the bowls ,or impellersmounted therein.

When the shaft and tube are a ain inserted in the pump the. webs i25 rstengage the casing .2 and center it over the bearin 15. As the parts arelowered and rotate forwardly they are screwed into position and the pumpis again ready to be operated.

The tube 6 really'forms the handle to a socket wrench normally held in afixed position by screwing on to the bearin l5 at 19, but used for thedual purpose o unscrewing and separating the shaft 5 and raising thesame to the surface of the ground after ity has been detached frombearing member 15.

It is to be understood, of course, that while I have herein shown anddescribed one specific embodiment of the linvention changes in form,construction and method of operation may be made within the scope of theappended claims.

I claim 1. In a deep well pump, a discharge casing, a bowl connectedthereto, an impeller in said bowl, a jointed shaft carrying saidimpeller, a coupling connecting the twoA shaft sections, a tubeenclosing said shaft and engaging said bowl, means carried by the tubeadapted to engage said coupling and disengage the same from one shaftsection. A j

2. In a deep well pump, a discharge casing, a bowl connected thereto, animpeller in said bowl, a jointed shaft carrying said impeller, acoupling connecting the two shaft sections, a tube e closing said shaftand engaging said bow, means carried by the tube adapted to engage saidcoupling' and disengage the same from one shaft section, and supportingmeans for the disengaged shaft section carried by said tube.

. 3. In a deep wellpump, a discharge casing, a bowl connected thereto,an impeller in said bowl, a jointed shaft carrying said impeller, acoupling connecting the two shaft sections, a tube enclosing said shaft,and means carried by the tube adapted to engage said coupling anddisengage the same from one shaft section.

4. In a deep well pump, a discharge casing, a bowl connected thereto, animpeller in said bowl, a shaft carrying said impeller and separable at apoint a distance above said bowl, a coupling therefor a bearing for saidshaft above said impeller, a tubular column enclosing saidshaft andnormallyv engaging said bearing, means carried by said column adapted toengage and unfasten said coupling when disengaged from 'said bearing,and means for sup orting the upper portion of the disengage shaftcarried by said column.

5. In a deep well pump, a discharge casing, a bowl connected thereto, animpeller in said bowl a shaft carrying said impeller and separable at apoint a distance above said bowl, a coupling therefor, and means forunfastening said coupling extending to the top ofthe well, and meanscarried by said unfastening means adapted to engage said couplingwhereby to lift the upper separated shaft portion.

6. In a deepwell pump, a discharge casing, a bowl connected thereto, animpeller .in said bowl, a shaft carrying said impeller `and separable ata point a distance above ation.

7.'.In a deep well pump, a discharge casing, a bowl connected thereto,an impeller in' said bowl, normally inoperative interlocking meansbetween said impeller and bowl, a separable shaft carrying saidimpeller, a coupling therefor, a coupling unfastening device loperablefrom the top of the Well, and means carried by said device adapted torender said interlocking means between said impeller and bowl operativeprior to the unfastening of the coupler.

y8. vIn a deep well pump, a discharge casing, a bowl connected thereto,an impeller in said bowl, normally inoperative interlocking .meansbetween said impeller and bowl, a separable shaft carrying saidimpeller, a coupler nut into which said shaft portions 'are threaded, abearing for the shaft below said coupling, a tubular column threadedinto said bearing in the same direction as the threaded connectionbetween the shaft and coupfler, a socket carried by said column adaptedto engage said coupler to unscrew the same from the lower ortion of theshaft, and a flange carried y said socket ada ted to engage and liftsaid coupler an shaft .and render said inter- 5 locking meansoperative.. Y'

9. In a deep well pump, a discharge casing, a bowlA connected thereto,an impeller in said bowl, separeble shaft sections carry- -ing saidimpeller, a tube enclosing said shaft sections, and means insertedbetween said 10 tube and shaft sections and operated by movement of seidtube for separating'said shaft sections.

' PONTUS OSTENBERG.-

